25402873 has 2 divisors, whose sum is σ = 25402874. Its totient is φ = 25402872.

The previous prime is 25402859. The next prime is 25402963. The reversal of 25402873 is 37820452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24880144 + 522729 = 4988^2 + 723^2 .

It is a cyclic number.

It is not a de Polignac number, because 25402873 - 2¹⁷ = 25271801 is a prime.

It is not a weakly prime, because it can be changed into another prime (25402823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701436 + 12701437.

It is an arithmetic number, because the mean of its divisors is an integer number (12701437).

Almost surely, 2^25402873 is an apocalyptic number.

It is an amenable number.

25402873 is a deficient number, since it is larger than the sum of its proper divisors (1).

25402873 is an equidigital number, since it uses as much as digits as its factorization.

25402873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 25402873 is about 5040.1262881003. The cubic root of 25402873 is about 293.9640885071.

The spelling of 25402873 in words is "twenty-five million, four hundred two thousand, eight hundred seventy-three".